I've not translated this so no idea if it has interesting info relevant to your piece but here is some info on Preußler a glassmaking family from Hoffnungstal if I understood it correctly:
https://de.wikipedia.org/wiki/Preu%C3%9Fler_(Glasmacher)
Within the text it does say re one of their glasshutte:
'Eight years before his death, Christian Benjamin Preußler handed over the Karlstaler Hütte to his son-in-law Franz Pohl in 1840, who was married to Amalia Preußler.'
I think Franz Pohl was Josephinenhutte?
But I may be getting confused. I find the history very difficult to follow because the families were linked, the names are remarkably confusing and similar and I forget which year which factories were in practise. I thought Josephinenhutte was later than 1830 but could be wrong.]
Oooh however there is more information here:
https://antikes-glas.de/glas-josephinenhuette-c-8.htmlSource: Antikes Neuwirth - quote:
'In 1617, the Schaffgotsch landlords granted permission for the construction and operation of a glassworks to another glassmaking family (Preußler) from Bohemia. The Preußlers operated the hut for over 200 years. In 1841, the landlords Schaffgotsch in the district of Weißbachtal founded a third glassworks, which opened on 7 July 1842 and was called "Josephinenhütte". Their leader was until 1882 Franz Pohl, a son-in-law of the last Preussler. (my bold) The Josephinenhütte developed into the most important industrial enterprise of the place and was until 1923 in the possession of the family Schaffgotsch. In the same year, the merger with the Heckert glassworks in Petersdorf and the Hermsdorf firm Neumann & Staebe took place at the "Josephinenhütte A. G.", which remained in operation until 1945. After the transition to Poland, production in Schreiberhau was continued from 1946, with some of the old workforce continuing to work partly under duress, partly because of material incentives. After a lost trial of Franz Schaffgotsch founded the "New Josephinenhütte" in Schwäbisch Gmünd the company had to change its name to "Huta Szkła Julia" in 1956 [3]. The hut is now closed. Smaller companies in the region continue the glassmaking tradition.'